UN MAR SIN BARRERAS — ORC Rating

GPH

736.3

OSN

713.1

LOA

7.067 m

Displacement

940 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5518

Medium

0.7481

High

0.8524

Triple Offshore

Low

0.7114

Medium

0.9175

High

1.049

Boat Specifications

Dimensions

Length overall: 7.067 m
Beam: 2.38 m
Draft: 1.18 m
Displacement: 940 kg
Crew weight: 310 kg
Wetted surface: 11.21 m²

Sails

Mainsail: 18.15 m²
Genoa: 9.08 m²
Spinnaker: 29.59 m²
Asymmetric spinnaker: 0 m²

Design

Type: SONAR 23
Builder: SONAR (UK) LDT
Designer: KIRBY
Year built: 1979
Stability index: 106.9

Velocity Prediction

Polar CSV

Each row is TWS followed by TWA and boat-speed pairs. Paste it directly into WX Navigator or compatible navigation software.

6,43.6,3.949339,52,4.38,60,4.64,75,4.8,90,4.93,110,4.95,120,4.79,135,4.32,146,3.787524,150,3.62
8,41.7,4.634105,52,5.17,60,5.38,75,5.52,90,5.73,110,5.77,120,5.66,135,5.24,150,4.62,151.4,4.555897
10,40.5,5.089387,52,5.62,60,5.78,75,5.92,90,6.21,110,6.28,120,6.17,135,5.85,150,5.4,156.5,5.157786
12,39.6,5.373042,52,5.89,60,6.06,75,6.25,90,6.59,110,6.78,120,6.66,135,6.31,150,5.93,170,5.442687
14,38.9,5.486717,52,6.07,60,6.29,75,6.55,90,6.82,110,7.31,120,7.19,135,6.77,150,6.35,178.1,5.853218
16,39.3,5.54378,52,6.16,60,6.43,75,6.81,90,7,110,7.89,120,7.86,135,7.32,150,6.78,179,6.240951
20,41.8,5.633984,52,6.19,60,6.53,75,7.1,90,7.7,110,9.09,120,10.4,135,9.3,150,7.93,176.6,7.072449

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.38	4.64	4.8	4.93	4.95	4.79	4.32	3.62
8	5.17	5.38	5.52	5.73	5.77	5.66	5.24	4.62
10	5.62	5.78	5.92	6.21	6.28	6.17	5.85	5.4
12	5.89	6.06	6.25	6.59	6.78	6.66	6.31	5.93
14	6.07	6.29	6.55	6.82	7.31	7.19	6.77	6.35
16	6.16	6.43	6.81	7	7.89	7.86	7.32	6.78
20	6.19	6.53	7.1	7.7	9.09	10.4	9.3	7.93

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.6°	2.86	146°	3.14
8	41.7°	3.46	151.4°	4
10	40.5°	3.87	156.5°	4.73
12	39.6°	4.14	170°	5.36
14	38.9°	4.27	178.1°	5.85
16	39.3°	4.29	179°	6.24
20	41.8°	4.2	176.6°	7.06

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